Měření zesílení vláknově optického zesilovače

Abstract

First part of my thesis discus about principles that are necessarily for understanding how optical amplifiers work, such as spontaneous emission, population inversion, and active region. Second part of my thesis describes various types of constructions of optical amplifiers like semiconductor amplifier, Raman amplifier or erbium doped fiber amplifier. In third part I attend to measurement of gain of erbium doped fiber amplifier and determination of signal to noise ratio on it’s output.